Inverted gas-lamp.



F. M. BROOKS. INVERTED GAS LAMP. APPLICATION FILED JUNE 2, 1908.

910,780. Patented Jan. 26, 1909.

2 SHEETS-SHEET l.

6 I 7 f 5mm *6 -%a 7 M/K 4% attozneg I F. M. BROOKS.

INVEETED (ms LAMP. 4 APPLICATION FILED JUNE 2, 190B.

Patented Jan. 26, 1909.

2 SHEETS-SHEET 2.

FRANK M. BROOKS, OF NEW YORK, N. Y.

INVEB'I'ED GAS-LAIEP.

Application filed June 2, 1908.

To all whom it may concern:

Be it known that I, FRANK M. Bnoons, a citizen of the United States, and a resident of the borough of Brooklyn, county of Kings, city and State of New York, have invented certain new and useful Improvements in Inverted Gas-Lamps, of which the following is a specification, reference being had to the accompanying drawings, in which- Figure 1 illustrates a plan view of a lamp embodying the invention; Fig. 2 illustrates an elevation of that which is shown in Fig. 1; Fig. 3 illustrates a plan view of a modification of the invention; Fig. 4 illustrates an elevation of that which is shown in Fig. 3.

The purpose of this invention is to simplify the construction of lamps of this class, to improve and to extend the duration of their operation, by removing the parts liable to derangement from the especially heated parts of the apparatus, to improve the appearance of the structure and generally to reduce its cost.

Referring first to Figs. 1 and 2, 1 represents a hollow globular terminal for the main gas supply pipe, 2 and 3 are curved tuhes which connect at their upper ends with the globular terminal. In the instance illustrated, the tube 3 only conveys gas. 4 is a stop cock located in the tube 3. It is provided with the ordinary lever or bar 5, and operating chains 6 and 7. 8 is a semi-circular gas carrying tube which is arranged outside the upwardly extending cylindrical part 9 of the lamp and above the laterally extending lower part thereofyso that it is in the open and freely circulating air removed from the heated interior of the structure.

At each side of the lamp there are short curved segments of tube, 10 and 11 respectively, at the ends of which are ordinary needle valves 12, which control the gas supply to the Bunsen burners 13, 13, etc., which are curved downwardly at their inner ends and supplied with suitable burner terminals 14. 15 is the usual pilot light tube.

The operation is as follows: The gas comes to the hollow terminal 1 through the usual gas supply pipe, extends thence through the tube 3, to the semi-circular tube 8 and flows through it to the short segmental tubes 10 and 11 and from them through the needle valves 12 to the burners. The gas is out OK fromthe burners by the appropriate manipulation of the chains which actuate the bar 5 of the cock 4 in a manner well understood.

Specification of Letters Eatent.

Patented Jan. 26, 1909.

Serial'No. 436,321.

When the gas is cut off a small amount is continually supplied to the pilot 15 in a manner also well understood, whereby a permanent igniting flame is maintained.

It, will be noted that the following advantages result from the invention. The gas controlling cock and the smaller gas tubes are located in the freely circulating open air,

outside of the interior of the lamp, where the intense heat is generated. Because of this location, they are not subject to the impairment or injury which would naturally result if they were placed in its interior, or if inclosed within any of the parts which would preclude or reduce the free circulation of air. It is very necessary in the construction of a lamp of this kind to have the operating parts so made and so located as to work freely and easily for an indefinite period. Therefore the advantage of their being so located as to be in the freely circulating open air is of great importance. The stop cock is so located and the actuating lever or bar 5 therefor so disposed relative to the extreme boundary line of the lower part of the lamp, that the pull chains 6 and 7 drop vertica ly therefrom without interferences with it, thus appearances are improved. The mixing chambers where the gas and air unite before passing to the burners are removed from the extremely heated interior of the lamp.

Aside from the above advantageous fea tures I call particular attention to the fact that there is a peculiarly valuable and effective result secured because of the location of the horizontally disposed semi-circular gas supply pipe 8 and the short segmental tubes 10 and 11 outside of the cylindrical upper part 9 of the lamp and immediately above the upper plate 16 (see Fig. 1) of the lower portion of the structure, in which are the air inlet holes 17, because the globe of the lamp (not shown) prevents the air supply coming to the burners from beneath, consequently the air rushes from all sides towards the perforations 17 in the said upper plate 16 in order to supply the vacuum created in the interior of the lamp and in its passage it sweeps over and about the immediately adjacent gas tubes 8, 10 and 11, materially reducing the temperature of the gas within them, hence, as is Well known, the quality of the light is improved.

In Figs. 3 and 4 I show an embodiment of the invention so arranged that the gas supplied to half the burners can be shut off, leaving the other half still supplied, or, if desired, the gas can be cut off from all the burners. This has an economic value, yet it necessitates the presence in the structure of two instead of only one gas cock. In these Figs. 3 and 4, the parts are largely the same as in Figs. 1 and 2 and have the same reference numbers. In this instance, however, both of the pipes 2 and 3 carry gas; the segmental tube 10 receives its supply of gas from the pipe 3 and the segmental tube 11 receives its supply from the pipe 2. Under this construction the stop cock 4 actuated by the bar or lever 5 will only control the gas supply of the burners 20 and 21, and an additional cook 18 with controlling lever or bar 19 must be furnished to control the burners 22 and 23.

t will be understood that the invention may be embodied in other forms than those herein shown and above described.

I claim:

1. In a lamp of the class stated, a gas supply pipe, oppositely arranged gas-carrying tubes connected at their upper parts with and extending from the supply pipe for the conveyance of gas and for the support of the lamp, horizontally disposed segmental tube sections connected with said lastnamed parts at the outer ends thereof, burners connected at their outer ends with the ends of said segmental tube sections, their inner portions being within the lamp, needle valves at or near theljunction of the burners with said segmental tube sections, a gas cook for each of said segmental tube sections, all of said parts excepting the inner portions of the burners and the upper parts of the oppositely arranged gas-carrying tubes being located in the freely circulating air outside of all the other parts of the lamp.

2. In a lamp of the class stated, a gas supply pipe, oppositely arranged gas carrying tubes connected at their up er parts with and extending from the supp y pipe for the conveyance of gas and for the support of the lamp, horizontally disposed segmental tube sections connecting with said lastnamed parts at the outer ends thereof, burners connected at their outer ends with the ends of said segmental tubular sections, their inner portions being within the lamp, needle valves at or near the junction of the burners with said segmental tube sections, a gas cook for the control of the supply of gas to each of said segmental tube sections, all of said parts excepting the inner portions of the burners and the upper parts of the oppositely arranged gas carrying tubes being located in the freely circulating air outside of all the other arts of the lamp.

In testimony whereof l have signed my name to this specification in the presence of two subscribing witnesses.

FRANK M. BROOKS.

Witnesses:

STUART R. MAoKENzIE, ALBERT J. BRooKs. 

